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Frequently Asked Questions

Why do I see some black or white spots in the viewer?

Night Vision, Laser Range Finders, Thermal, Stabilized Image...
These are the cosmetic blemishes in the image intensifier, which do not affect the performance or reliability of a night vision device. A certain number of such spots of varying sizes are inherent in the manufacturing processes. They can also be dirt or debris between the lenses, which should be removed by careful cleaning if the system is designed with interchangeable optics.

Why are black and white spots so rare?

Frequently Asked questions about COLOR GENETICS
We'll dealing with a two-strikes against situation. Black is dominant, but is diluted by Dun, and modified by Agouti This means both parents have to carry black or be black. Then you have to get the spots, which, as discussed earlier, you are getting 50/50 chances. If black spotted animals are only bred to gray-dun, then you have taken away the necessary factor to match up the black.

why are they only in Black and White?

The DT FAQ :: That's Frequently Asked Questions foo'! Now qu...
because being colorblind, I don't see in color, and instead of driving me and everyone around me nuts by constantly asking if one color is the same as what I used last time, I just do DT as line art, occasionally i add some color, or do a special color pic, but otherwise i just say screw color.

What causes white spots?

Tanning Frequently Asked Questions & Benefits, FAQ
Tinea Versicolor, a skin condition, caused by a microscopic fungus from the scalp, falls onto arms, shoulders, and other body parts and leaves bleached-looking areas on the skin, which can spread. It is treatable with topical aids such as leaving the active ingredient in Selsum Blue dandruff shampoo on for 10 minutes along with applying Tea Tree oil twice daily for mild cases. For more resistant conditions, your doctor may prescribe pills for treatment.

There are small black spots on the flowers. What should I do?

ORCHIDS.COM : SUPPORT : FAQ
Black spots on flowers are usually caused by Botrytris, a fungus. The problem is caused by poor air circulation and too much moisture. The remedy is to increase air circulation and reduce the humidity.

How do you make the background white rather than black?

Raster3D Frequently Asked Questions
Each input file to the render program starts with 19 header records that describe image layout and processing options. The fifth line contains three numbers which specify the RGB values for the background. 0 0 0 specifies a black background; 1 1 1 specifies a white background; 0.9 0.9 0.4 specifies a light yellow background, and so on.

QUESTION: My client often has white spots on her nails. What causes this?

Nails Magazine - Resources
ANSWER: White spots on the nail is perhaps the most common nail disorder and are called leukonychia, which literally means "whiteness of the nails." There are many types of nail whiteness, some of which indicate serious illness; fortunately, by far the most common cause of white spots on the nail is minor injury to the nail matrix. Caused by trauma or minor injury to the nail matrix, these spots will grow out from the matrix with the nail plate and eventually disappear.

What are these white spots?

Asian Sun Tanning Studio - A tanning salon in Hudson, Ohio.....
There are a few reasons why white spots become noticeable on the body once the tanning process begins. Typically, white patches of skin on the shoulder blades, elbows and just above the buttocks are caused by the pressure from the body as it reclines on a hard acrylic surface. This pressure inhibits the flow of blood through that area of the skin. Since blood carries oxygen and oxygen is essential to the tanning process, this area does not tan.

Why would I find Black Spots on Tin & Tin/Lead Plating?

New Brunswick Plating, Inc.
Fretting is a common problem with Tin Plating. This is surface damage created when there is relative motions and strong contacts between parts, usually during shipping and handling. The tin plating shows black or worn spots caused by rubbed or scratched by another part. This oxide does not effect the parts functionally. They are still solderable. A way to eliminate fretting is by changing the type of packaging. (Layer packing or plastic trays are recommended) - Metal Finishing Guidebook 1997

There are small reddish brown spots turning black on the leaves. What should I do?

ORCHIDS.COM : SUPPORT : FAQ
This is an indication of a fungal infection. Fungal infections are usually the result of warm temperatures, high humidity and low light levels. Treat the plants with a systemic fungicide such as Phyton 27.

My rose has black spots on the leaves, what do I do?

Roses FAQ
Blackspot is a fungus that causes black spots about 1/16 to 1/2 inches in diameter to form on the leaves and sometimes stems. The infected leaves later turn yellow around the spots and eventually fall from the plant. In bad cases, blackspot can severely defoliate a rose bush. The conditions that promote blackspot are wet leaves, splashing water and warm temperatures. Here are some ways to combat blackspot. Most of these methods also apply to preventing and treating powdery mildew.

Why is the picture black and white?

Hier finden Sie die aktuellen Infos zur DVD Technologie
You are probably trying to play an NTSC disc in a PAL player, but your PAL TV is not able to handle the signal. If your player has a switch or onscreen setting to select the output format for NTSC discs, choosing PAL (60-Hz) may solve the problem. See section 1.19 for more information.

How many bits do I need to smoothly shade from black to white?

Gamma FAQ - Frequently Asked Questions about Gamma
a particular level of adaptation, human vision responds to about a hundred-to-one contrast ratio of luminance from white to black. Call these luminance values 100 and 1. Within this range, vision can detect that two luminance values are different if the ratio between them exceeds about 1.01, corresponding to a contrast sensitivity of one percent.

The image viewer is black or blank, what should I do?

TerraServer - The Leader In Online Imagery - Aerial Photos &...
Try panning around the image as well as zooming in and out. If neither of these work, use the Imagery button to select a different image. If none of these suggestions work, please use the contact page to inform us of the problem. Please make sure to include the location and the image date and provider.

Are red spots or stains on the white of my eye serious?

Cataract Surgery California | Diabetic Retinopathy Santa Ros...
Small or conspicuous blood spots over the white of the eye are common. They are harmless and usually clear in a matter of days or weeks.
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